The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 1981
Filed:
Oct. 30, 1979
Applicant:
Inventor:
Akiyoshi Torigai, Machida, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
118652 ; 118657 ; 118658 ;
Abstract
A magnetic powder transporting device for use in a developing or cleaning unit in an image forming apparatus such as an electrophotographic copier or magnetic printer. A magnet functioning as the transporting means is provided at the ends thereof with magnetic field generating portions for magnetically displacing the magnetic powder toward the inner position. Said magnetic field generating portions are formed by inclined end portions of main magnetic poles or by auxiliary magnetic poles separate from said main magnetic poles.
Torigai, Akiyoshi. (1981). Magnetic powder transporting device (U.S. Patent No. 4297969). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4297969
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile